The study of diatoms doped with nanoparticles for atrazine adsorption
Atrazine is one of the world's most effective and inexpensive herbicides and is used more frequently than any other herbicide. Atrazine is frequently detected in water and has been known to affect the reproduction of aquatic flora and fauna, impacting the community structure as a whole. Mor...
محفوظ في:
| المؤلف الرئيسي: | |
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| التنسيق: | bachelorThesis |
| اللغة: | eng |
| منشور في: |
2023
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://repositorio.yachaytech.edu.ec/handle/123456789/693 |
| الوسوم: |
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إضافة وسم | الملخص: | Atrazine is one of the world's most effective and inexpensive herbicides and is used more frequently than any other herbicide. Atrazine is frequently detected in water and has been known to affect the reproduction of aquatic flora and fauna, impacting the community structure as a whole. Moreover, microalgae have been recognized as one of the most efficient microorganisms to remediate industrial effluents. Among microalgae, diatoms are silica-shelled unicellular eukaryotes found in all types of water bodies and flourish very well, even in wastewater. They act as smart nanocontainers to adsorb various trace metals, dyes, polymers, and drugs that are hazardous to humans and aquatic life. The beautiful nanoarchitecture in diatoms allows them to easily bind to ligands of choice to form a nanocomposite structure with other molecules such as metals, polymers, and other pollutants. This work studies the structural properties and the adsorption of atrazine using the Aulacoseira genus microalgae-derived biosilica decorated with gold nanoparticles (Au-NPs) or silver nanoparticles (Ag-NPs). The characterization of the samples will be done by using Ultraviolet-Visible spectroscopy (UV-vis), Fourier transforms infrared spectroscopy (FTIR), Raman spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive spectroscopy (EDX), and Fluorescence microscopy. This work aims to evaluate the use of diatoms decorated with plasmonic nanoparticles to remove atrazine from wastewater. The impact of this work relies on the current importance of environmental remediation using low-cost bioresources, and such naturally available diatom nanomaterials are economical and highly sensitive to help in the facile removal of toxic pollutants from wastewater. |
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